Speaker
Fred COURBIN
Description
The arrival time of photons in the different lensed images of distant quasars can be measured from long and well-sampled light curves. This has been pioneered by the COSMOGRAIL, H0LiCOW and TDCOSMO programs and will soon been follow-up with Rubin-LSST. Time delays are inversely proportional to H0 and agree with local H0 measurements such as SH0ES. I will present some of the recent results from the TDCOSMO collaboration and show how the field of time delay cosmography can be used in the future to measure H0 and narrow down the error bars.
